- Namespace
 - MahApps
.Metro .Controls  - Containing Type
 - WindowButtonCommands
 - Event Type
 - WindowButtonCommands
. Closing Window Event Handler  
Syntax
public event WindowButtonCommands.ClosingWindowEventHandler ClosingWindow
	
                                
                                
                                               
                         
                
            public event WindowButtonCommands.ClosingWindowEventHandler ClosingWindow